Sheet piling of box shape



Sept. 16, 1930. K. NOLTE SHEET PILING 0F BOX SHAPE Filed Jan. 6. 1928 Patented Sept. 16, 1930 UNITED STATES KARL NOLTE, 0F HANOVER, GERMANY SHEET FILING OF BOX SHAPE Application filed January 6, 1928, Serial No. 244,929, and in Germany April 6, 1927.

Iron sheet pilings have been proposed for developing large resistances, wherein the individual box-shapes are connected, either at the neutral axis, or at the outer line. With connections at the neutral axis the moment of resistance to rotational stress is small with the known connections, because the individual box-shapes are connected to each other more or less movably by special connecting members.

According to the present invention this disadvantage is got rid of by locating the connections towards the inside and by making the individual boxes touch each other by their front faces; also by providing locking bars for the purpose of holding the boxes together.

The Figs. 1 and 2 of-the accompanying drawings show a construction of the piling according to the invention in cross section. Two U-shaped iron sections a and b, the ends 0 and cl of which are bent inwards at right angles, are placed with the open sides opposite each other. Then the locking bar 6 which corresponds with the bent ends 0 and d, is driven in, whereby the box is held together.

- In order to prevent a shifting of the lockingbar 6, it may be made wedge-shaped or be provided with a lug f, which lies against the surface of a and b. The individual construction of the connect-ions can naturally be of of the most various shapes.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is 1. Iron sheet box-piling of the kind referred to, comprising hollow members provided with neutral axis connections located Within the members, the latter being in addition so shaped that their adjacent faces abut against one another.

2. Iron sheet box-piling of the kind re ferred to, comprising hollow members each having centrally disposed along a face an opening the edges of which are turned inwards for engagement by a T-shaped connection.

3. Iron sheet box-piling of the kind re ferred to, comprising hollow members each consisting of two channel shaped members having inturned edges, and locking bars which are of T-shape in cross section and which engage the inturned edges to lock the hollow members in abutting relation.

4. Iron sheet box-piling of the kind re ferred to, comprising hollow members each consisting of two channel shaped members having inturned edges, and locking bars which are of double T-shape in cross section for engaging the inturned edges.

5. Iron sheet box-piling of the kind referred to, comprising hollow members each consisting of two channel shaped members the side faces of which are at right angles to the body portion thereof and the edges turned inwards.

6. Iron sheet box-piling of the kind referred to, comprising hollow members each consisting of two channel shaped members the side faces of which are at right angles to the body portion thereof and the edges turned inwards, and locking bars which are of double T-shape in cross section for engaging the inturned edges.

7. Iron sheet box-piling of the kind referred to, comprising hollow members each consisting of two channel shaped members the side faces of which are at right angles to the body portion thereof and the edges turned inwards, and locking bars which in cross section are of double anchor shape for engaging the inturned edges.

8. Box piling comprising pairs of symmetrically arranged channel shaped sections, the members of each paid being arranged with their channels adjacent, and means between the sections of adjacent pairs for locking the sections together and for locking adjacent pairs in face to face abutting relation.

9. Box piling comprising pairs of symmetrically arranged similar substantially channel shaped sections having inturned side edges, and locking bars extending between the side edges of the members of adjacent pairs and having means to engage the in- 7 turned edges, thereby to lock the pairs together.

In testimony whereof I have affixed my signature.

KARL NOLTE. 

